CN112550802B - A parachute packing device and method - Google Patents

Abstract

The invention relates to a parachute packing device, comprising a platform, a vertical column, a loading mechanism and an extension rod. The symmetrically arranged vertical columns are respectively welded at the center positions of the short sides of the platform panel. , the height and total height of the through holes in the cross-section of the two columns are the same; the loading mechanism includes a sleeve, a bearing, a reel, a rotating shaft, a ratchet, a pawl, a spring and a protective cover. The interior is hollow and can be sleeved on the column; the two lugs of the sleeve are machined with stepped holes, and the bearings are respectively sleeved in the stepped holes of each lug; the reel is in the form of a stepped shaft, including a thin shaft end and a thick shaft end , the thin shaft ends pass through the lug and the bearing respectively from one side. The device is simple in structure, light in weight, convenient in movement and strong in applicability, and can be expanded to be applied to the packaging of flexible products such as airbags and the umbrella of field tests.

Description

A parachute packing device and method

technical field

The invention relates to a parachute packing device and method, belonging to the technical field of parachute packing.

Background technique

Due to space constraints, the parachute of the spacecraft generally adopts a high-density umbrella. After the hydraulic umbrella machine fills the umbrella bag and other products with a pressure of several tons, the umbrella machine is withdrawn and packaged for disposal. During packaging, since there is no external pressure, flexible materials such as umbrellas will expand to a certain extent, which is not conducive to packaging.

The existing package is purely manual operation, generally composed of three people. Each of them takes a pull rod and wraps the two ends of the package rope. At the same time, the force is tightened in the opposite direction. until the requirements are met and hold. After the third person presses the wrapping rope at the intersection of the wrapping rope, the other two quickly release the pull rod and the two ends of the wrapping rope, and one of them ties the wrapping rope. In this process, the strength of personnel is relatively high. For umbrella bags with high density, it is difficult for manpower to control the wrapping rope in place, and multiple people are required to operate skillfully and cooperate tacitly to ensure the quality of the wrapping and the safety of personnel operation.

SUMMARY OF THE INVENTION

The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, a parachute packing device and method are provided, which are used for the packing of most parachute parachute packs.

The technical solution of the present invention is:

A parachute packing device includes a platform, a column, a loading mechanism and an extension rod,

The symmetrically arranged uprights are welded to the center of the short sides of the platform panel, respectively. The cross-section of the uprights is provided with through holes, which are parallel to the platform panel, and the heights and total heights of the cross-sections of the two uprights are consistent;

The loading mechanism includes a sleeve, a bearing, a reel, a rotating shaft, a ratchet, a pawl, a spring and a protective cover. The sleeve is in the form of a cylinder + two lugs. The cylinder is hollow inside and can be sleeved on the column;

The two lugs of the sleeve are machined with stepped holes, and the bearings are respectively sleeved in the stepped holes of each lug; the drum is in the form of a stepped shaft, including a thin shaft end and a thick shaft end, and the thin shaft ends pass through from one side respectively. lugs and bearings;

The center of the reel is perpendicular to the reel and is provided with a pin, which is used to fix the wrapping rope;

The rotating shaft is sleeved on the thin shaft end of the reel to limit the lateral movement of the reel and the bearing at the thin shaft end;

A ratchet is installed on the thick shaft end of the reel to limit the lateral movement of the ratchet and the thick shaft end bearing;

Install a pawl and a spring on the lug, and the spring pulls the pawl on the ratchet;

One end of the long rod is inserted into the through hole of the rotating shaft, and 360° rotation can be realized through the bearing.

Further, the platform includes a platform panel, casters and feet,

The platform panel is a rectangular plane, and there is a threaded through hole at a right angle position of the platform panel;

The feet are located on the lower side of the platform panel, and each foot uses a bolt, from bottom to top, through the through hole of the foot and the threaded hole of the platform panel in turn, to fix the foot at a right angle position of the platform panel;

The casters are attached to the feet.

Further, the size of the through holes and the spacing of the through holes on the symmetrically arranged uprights are the same.

Further, the cross section of the sleeve is provided with holes that are consistent with the holes on the upright column, and can be fixedly connected to the upright column.

Further, a protective cover is installed on the outer side of the thick shaft end of the reel.

Further, the extension rod includes a long rod and a rope sleeve, the long rod is a cylindrical structure, one end of the long rod is inserted into the through hole of the rotating shaft, the circular section of the other end is processed with a through hole, and the rope sleeve passes through the through hole of the long rod to form Tackle.

A parachute packaging method, the steps are as follows:

Step 1: Fix the device: move the device to the operation site by using the bottom casters, adjust the orientation of the device to ensure sufficient operating space, and tighten a mechanical adjustment foot to make the mechanical adjustment foot contact the ground, so that the device can be lifted and stabilized;

Step 2, place the umbrella bag: place the umbrella bag with the seal facing up and place it in the center of the platform;

Step 3, install the wrapping rope: after the wrapping rope passes through the buckle loop of the umbrella bag seal, it is stretched in the opposite direction and wound on the pins of the reels of the loading mechanism on both sides respectively;

Step 4: Adjust the height of the loading mechanism: according to the height of the umbrella bag, adjust the connection position of the sleeve on the column to make the packing rope level, and fix the sleeve on the column with bolts;

Step 5: Apply the wrapping load: insert a long rod into the through hole of the rotating shaft of the loading mechanism, and rotate synchronously to ensure that the wrapping rope is evenly stressed. Under the action of the spring, it is stuck at the tooth root position of the ratchet, and the restricting mechanism rotates in the reverse direction until the packaging requirements are met and the packaging rope is locked;

Step 6: Loosen the end of the wrapping rope: under the condition that the extension rod is under force, turn the pawl to release the limit between the extension rod and the ratchet wheel, and slowly rotate the extension rod in the opposite direction to loosen the end of the wrapping rope and remove it from the coil. out of the barrel.

The beneficial effects of the present invention compared with the prior art are:

(1) The platform size of the present invention is large, the height of the loading mechanism is adjustable, and the versatility is strong, which is suitable for the packaging of most parachute bags;

(2) The present invention increases the package load from 300N manually to not less than 1500N by extending the lever arm, which greatly increases the package load and can meet the requirements of high-density umbrellas;

(3) The present invention restricts the movement of the reel in the opposite direction through the ratchet module, and the maintenance time of the operator is generally less than 10s under the condition of large load. After using this device, the maintenance time is not less than 1h, which greatly reduces the operator labor intensity;

(4) The ratchet on the device can lock the reel at any time to prevent the reel from rebounding and driving the extension rod to injure the operator;

(5) The device is simple in structure, light in weight, convenient in movement and strong in applicability, and can be expanded to be applied to the packaging of flexible products such as airbags and the umbrella of field tests.

Description of drawings

Fig. 1 is the platform structure schematic diagram of the present invention;

2 is a schematic structural diagram of a parachute packing device of the present invention;

FIG. 3 is a schematic structural diagram of the loading mechanism of the present invention.

Detailed ways

The present invention will be further elaborated below in conjunction with the examples.

A parachute packing device includes a platform, a column, a loading mechanism and an extension rod,

As shown in Figure 1, the platform includes a platform panel 1, casters 2 and feet 3,

The platform panel 1 is a rectangular plane, and there are 4 threaded through holes at 14 right-angle positions of the platform panel;

The casters 2 are located on the lower side of the platform panel 1, and each foot seat 3 adopts 4 bolts, from bottom to top, pass through the through hole of the foot seat 3 and the threaded hole of the platform panel 1 in turn, and fix the foot seat 3 on the platform panel 1. 4 right-angle positions;

On the platform panel 1 near each foot seat 2, one threaded through hole is machined, and each of the four mechanical adjustment feet 3 is screwed into one through hole from bottom to top;

The two uprights 4 are respectively welded to the center of the short side of the platform panel 1. The through holes on the cross-section of the uprights 4 have the same size and the same spacing between the through holes and are parallel to the platform panel 1. The height of the through holes in the cross-section of the two uprights 4 and the total height is consistent;

As shown in Figure 3, the loading mechanism includes a sleeve 5, a bearing 6, a reel 7, a rotating shaft 8, a ratchet 9, a pawl 10, a spring 11 and a protective cover 12. The sleeve 5 is in the form of a cylinder + two lugs, The sleeve 5 is provided with a hole consistent with the hole on the column, which is fixedly connected to the column. The interior of the column is hollow and can be sleeved on the column 4. The through hole is fixed;

The two lugs of the sleeve 5 are machined with stepped holes, and the bearings 6 are respectively sleeved in the stepped holes of the two lugs; the reel 7 is in the form of a stepped shaft, including a thin shaft end and a thick shaft end, and the thin shaft end starts from one end. The sides pass through 2 lugs and bearing 6 respectively;

The rotating shaft 8 is sleeved on the thin shaft end of the reel 7 to limit the lateral movement of the reel 7 and the bearing 6 at the thin shaft end;

The ratchet wheel 9 is installed on the thick shaft end of the reel 7 to limit the lateral movement of the ratchet wheel 9 and the thick shaft end bearing 6;

Install the pawl 10 and the spring 11 on the lug, and the spring 11 tightens the pawl 10 on the ratchet 9; on the outside of the thick shaft end of the reel 7, install the protective cover 12;

As shown in FIG. 2 , the extension rod includes a long rod 13 and a rope sleeve 14. The long rod 13 is a cylindrical structure, and one end of the long rod is inserted into the through hole of the rotating shaft 8, and 360° rotation can be realized through the bearing 6; the circular section at the other end is A through hole is processed on the upper part; the rope cover 14 is a flexible annular structure, and passes through the through hole of the long rod 13 to form a bar tack, which is convenient for storage.

The steps to use the device are as follows:

Step 1: Fixing the device: Move the device to the operation site by using the bottom casters 2, adjust the orientation of the device to ensure sufficient operating space, and tighten the four mechanical adjustment feet 3 so that the mechanical adjustment feet 3 touch the ground, and the device is lifted and stabilized.

Step 2: Place the umbrella bag: Place the umbrella bag with the seal facing up and place it in the center of the platform.

Step 3: Install the wrapping rope: after the wrapping rope passes through the buckle loop of the umbrella bag seal, it is stretched in the opposite direction and wound on the pins of the reel 7 of the loading mechanism on both sides respectively;

Step 4: Adjust the height of the loading mechanism: According to the height of the umbrella bag, adjust the connection position of the sleeve 5 on the column 4 to make the bag rope level, and fix the sleeve 5 on the column 4 with bolts;

Step 5: Apply the wrapping load: Insert the two long rods into the through holes of the rotating shaft 8 of the loading mechanism, and rotate synchronously to ensure that the wrapping rope is evenly stressed. During the rotation, the wrapping rope is wound on the reel 7, and the ratchet 9 follows. Rotation, the pawl 10 is stuck at the tooth root position of the ratchet 9 under the action of the spring 11, and the restricting mechanism rotates in the reverse direction until the packaging requirements are met and the packaging rope is locked;

Step 6: Loosen the end of the wrapping rope: under the condition of keeping the extension rod under force, turn the pawl 10 to release the limit between it and the ratchet 9, slowly rotate the extension rod in the opposite direction to loosen the end of the wrapping rope, and Pull out from reel 7;

Step 7: Withdrawal: Remove the umbrella bag, put the extension rod into the column 4, loosen the mechanical adjustment foot 3, and put the packaging device back into the storage place.

The platform of the invention has a large size, the height of the loading mechanism is adjustable, the versatility is strong, and it is suitable for the packaging of most parachute parachute bags;

The present invention increases the package load from 300N manually to not less than 1500N by extending the lever arm, which greatly increases the package load and can meet the requirements of high-density umbrellas;

The invention restricts the movement of the reel in the opposite direction through the ratchet module, and the maintenance time of the operator is generally less than 10s under the condition of large load. After using the device, the maintenance time is not less than 1h, which greatly reduces the labor intensity of the operator ;

The ratchet on the device can lock the reel at any time to prevent the reel from rebounding and driving the extension rod to injure the operator;

The device is simple in structure, light in weight, convenient in movement and strong in applicability, and can be expanded to be applied to the packaging of flexible products such as airbags and the umbrella of field tests.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can use the methods and technical contents disclosed above to improve the present invention without departing from the spirit and scope of the present invention. The technical solutions are subject to possible changes and modifications. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention belong to the technical solutions of the present invention. protected range.

Claims (2)

1. a parachute packing method, is characterized in that, utilizes parachute packing device, comprises platform, column, loading mechanism and extension rod, Symmetrically arranged uprights (4) are welded to the center of the short sides of the platform panel (1), respectively, and through holes are formed in the cross section of the uprights (4), the through holes are parallel to the platform panel (1), and the two uprights (4) are transverse to each other. The height of the cross-section through hole and the total height are the same; The loading mechanism includes a sleeve (5), a bearing (6), a reel (7), a rotating shaft (8), a ratchet (9), a pawl (10), a spring (11) and a protective cover (12), the sleeve ( 5) It is in the form of a cylinder + two lugs, the cylinder is hollow inside and can be sleeved on the upright column (4); The two lugs of the sleeve (5) are machined with stepped holes, and the bearings (6) are respectively sleeved in the stepped holes of the two lugs; the drum (7) is in the form of a stepped shaft, including a thin shaft end and a thick shaft end , the thin shaft end passes through the 2 lugs and the bearing (6) from one side respectively; The center position of the reel (7) is perpendicular to the reel (7) and a pin is arranged for fixing the wrapping rope; The rotating shaft (8) is sleeved on the thin shaft end of the reel (7) to limit the lateral movement of the reel (7) and the bearing (6) of the thin shaft end; A ratchet (9) is installed on the thick shaft end of the reel (7) to limit the lateral movement of the ratchet (9) and the thick shaft end bearing (6); Install the pawl (10) and the spring (11) on the lug, and the spring 11 pulls the pawl 10 on the ratchet 9; One end of the long rod is inserted into the through hole of the rotating shaft (8), and 360° rotation can be realized through the bearing (6); The platform includes a platform panel (1), casters (2) and feet (3), The platform panel (1) is a rectangular plane, and there are 4 threaded through holes at 4 right-angle positions of the platform panel (1); The feet (3) are located on the lower side of the platform panel (1). Each foot (3) uses 4 bolts, from bottom to top, passing through the through holes of the feet (3) and the threads of the platform panel (1) in sequence. holes to fix the feet (3) on the 4 right-angle positions of the platform panel (1); The caster (2) is connected to the foot seat (3); Proceed as follows: Step 1: Fix the parachute packing device: move the parachute packing device to the operation site by using the bottom caster (2), adjust the orientation of the parachute packing device to ensure sufficient operating space, and tighten the four mechanical adjustment feet (3) to make the mechanical adjustment feet. The seat (3) is in contact with the ground, and the device is lifted and stabilized; Step 2, place the umbrella bag: place the umbrella bag with the seal facing up and place it in the center of the platform; Step 3, install the wrapping rope: after the wrapping rope passes through the buckle loop of the umbrella bag seal, it is stretched in the opposite direction and wound on the pins of the reel (7) of the loading mechanism on both sides respectively; Step 4. Adjust the height of the loading mechanism: according to the height of the umbrella bag, adjust the connection position of the sleeve (5) on the column (4) to make the packing rope level, and fix the sleeve (5) on the column (4) with bolts; Step 5: Apply the wrapping load: Insert the two long rods into the through holes of the rotating shaft (8) of the loading mechanism, and rotate synchronously to ensure that the wrapping rope is evenly stressed. During the rotation, the wrapping rope is wound on the reel (7), The ratchet wheel (9) rotates accordingly, and the pawl (10) is stuck at the root position of the ratchet wheel (9) under the action of the spring (11), and the restricting mechanism rotates in the reverse direction until the packaging requirements are met and the packaging rope is locked; Step 6: Loosen the end of the wrapping rope: under the condition that the extension rod is under force, turn the pawl (10) to release the limit between it and the ratchet (9), and slowly rotate the extension rod in the opposite direction to make the end of the wrapping rope The head is slack and withdrawn from the reel (7). 2 . The parachute packing method according to claim 1 , wherein the cross-section of the sleeve ( 5 ) is provided with a hole that is consistent with the hole on the column, and can be fixedly connected to the column. 3 .

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